What is the top speed of a 1991 polaris sport 440 snowmobile?

The top speed of a 1991 Polaris Sport 440 snowmobile is approximately 80 to 90 miles per hour (mph). This performance can vary based on factors such as modifications, rider weight, and trail conditions. The Sport 440 was known for its lightweight design and agility, making it a popular choice among snowmobile enthusiasts of that era.